Conveyer



y 1945- A. DE L. SINDEN I 2,375,698

' QONVEYER Original Filed March '2, 1940 7L 7 7L L y 1. 1. I

ALFRED 05 Los .SmoE/v INVENTOR m (Meg I ATTOR N EY Patented Mays,

Alfred De Los Sinden, Aurora, 111., assignor to Redler ConveyorCompany,Quincy, Mass, at corporation of Massachusetts Original application March2, 1940, Serial No. 321,968, new Patent No. 2,281,026, dated April 28,1942. Divided and this application January 19. 1942. Serial No. 427,309r This invention relates to a conveyer for conveying flowable solidmaterial.

The object of the invention isto provide a novel and improvedconstruction of conveyer which finds particular use in conveying lumpymaterials and with which the liability oijam ming the conveyer andinjuringthe component partsthereof is reduced to a minim-um.

With this general object in view, and such others as may hereinafterappear, the invention consists in the conveyor and inthe variousstructures, arrangements and combinations of parts hereinafter describedand particularly defined in the claim at the end of this specification.

In the drawing illustrating the preferred embodiment of the invention,Fig. 1 is a longitu .dinal section; and Fig. 2 is a cross-section of aconveyor embodying the present invention.

Prior tothe presentinvention substantial difflculty has been encounteredin handling certain types of lumpy flowable material in conveyors oi thetype embodying an elongated casing and a conveying element having spacedflights adapted "to be drawn therethrough. Among such material may bementioned crushed stone, coal, and other material containing lumps of ahardness such that when wedged between the flights of the conveyer andthe sharp edge of the conveyer casing forming the rear edge of the inletor discharge opening therein, the flights oftentimes become broken orbent, or the conveyer stalled and rendered inoperative. The presentinvention contemplatesnovel and improved structures of the conveyer atthe inlet and discharge sec tions thereof anddifl'erent features of-theinvention find particular use in conveyers of the open flight type suchas form the subject matter of the Redler United States Reissue PatentNo.:18,445, while other features of the invention are particularlyuseful in connection with conveyers of the solid flight type, such forexample as illustrated in the United States patent to White No.2,066,866.

Referringto the drawing, It represents a casing of a. conveyer of thetype referred to which is provided withan inlet chute it through whichmaterial is introduced into the casing ill to be conveyed therethroughby a conveyer element made up of a plurality of flexibly connectedflights I6. The flights iii are of the open type comprising twouprightside legs 50, 52 and a cross-bar 54 connecting the side legs atasubstantial distance above the bottom of the legs. One leg 52 issubstantially shorter than the other leg :50 sothat during normaloperation of the conveyer the level of the material is disposedsubstantially below the pivotal connection beat the upper end of theirlonger vertical legs,

1 Claim. (01. nae-52) tween the flights; The casing is also providedwith a discharge outlet I4 and the disposition of the cross-bar 5isubstantially above the lower portion of the legs 5%, 52 avoids theliability of jamming lumps of the material being conveyed between thecross-bar and the edge 40, of the discharge opening.

In order to prevent the material as it is introduced into the casingthrough the inlet chute l2 from entering into the pivotal connectionsbetween successive flights, the end of the discharge chute I2 isarranged to terminate substantially below the level of the pivotalconnections connecting the upper ends of each ofthe longer legs of theflights within and adjacent the top wall of the casing, as illustratedin Fig. 2. The chute also terminates immediately above the shorter legs52 of the flight, and a cover member 20 is provided upon one adjacentsidewall of the casing arranged to extend immediately over the upper endof the shorter leg 52 in order to prevent the direct entrance ofmaterial between the shorter legs and the side wall of the casing as thematerial leaves theinlet chute l2.

This application is a division of my co-pending application, Serial No.321,968, filed March 2, 1940, and issued April 28, 1942, as Patent No.

' Having thus described the invention, what is '30 clanned 1S:

In a conveyer, a substantially horizontal cas ing provided withtop,bottomand side walls and a discharge opening in thebottom wall, acon veyer element adaptedto be drawn through the casing comprising aplurality of H-shaped open flights, each having, one of its verticallegs of substantially greater length than the other, adjacent flightsbeing pivotally connected together said flights being of a size todispose said pivotal connections withinand adjacent the top wall of thecasing, said H-shaped flights being constructed to dispose the cross-bara substantial distance above thebottom of thecasing whereby to pre- 45vent jamming of lumpy material between the cross-bar and the rear edgeof the discharge opening in thebottom wall of the casing, an inlet chuteextended down into the casing a substantial distance below said pivotalconnections and at one side of said longer vertical legs and terminatingslightly above the shorter legs thereof, and a cover carried bythe sidewall of the casing and extendedimmecliately over the shorter legs forpreventing direct entrance of material ,be-

tween said shorter legs and the side wall of the casing.

ALFRED DE LOS S INDEN,

